Criminal justice client rehabs are available as being a far better option than prison time or significant fines for those who have already been convicted of any kind of drug or alcohol related crime. As an example, anyone who has been in prison for driving while impaired of alcohol or drugs may qualify to get rehab services for his or her problem as opposed to serving time in prison. The judge might even order that the individual receive treatment, either alone or as well as other consequences. First-time offenders in particular are often given the chance to choose a criminal justice client rehab as an alternative to other sentencing, and it is highly recommended that they make the most of it when it is an alternative. The idea behind criminal justice client rehabs is it is much more effective and efficient to invest time and energy into rehab than enforcement of other consequences. Much research has been done to discover how effective this method is on recidivism rates, i.e. if the criminal justice client returns or not to criminal justice system following rehab. The signs and indicators appear to be quite positive, and criminal justice clients that experience treatment have better chance of remaining out of the system following rehabilitation.